Free convection in a porous horizontal cylindrical annulus with a nanofluid using Buongiorno's model

Abstract

Natural convection flow in a porous concentric horizontal annulus saturated with a water based nanofluid is numerically investigated. The mathematical model used is of single-phase and is formulated in dimensionless stream function and temperature taking into account the Darcy-Boussinesq approximation and the nanofluid model proposed by Buongiorno. The transformed dimensionless partial differential equations have been solved using a second-order accurate finite-difference technique. The results indicate that inclusion of nanoparticles into pure water changes the flow structure at low values of the Rayleigh number.

Original language	English
Pages (from-to)	182-190
Number of pages	9
Journal	Computers and Fluids
Volume	118
DOIs	https://doi.org/10.1016/j.compfluid.2015.06.022
Publication status	Published - 2 Sep 2015

Keywords

Buongiorno model
Free convection
Horizontal annulus
Nanofluids
Numerical method
Porous medium

ASJC Scopus subject areas

Computer Science(all)
Engineering(all)

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10.1016/j.compfluid.2015.06.022

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Cite this

Sheremet, M. A., & Pop, I. (2015). Free convection in a porous horizontal cylindrical annulus with a nanofluid using Buongiorno's model. Computers and Fluids, 118, 182-190. https://doi.org/10.1016/j.compfluid.2015.06.022

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abstract = "Natural convection flow in a porous concentric horizontal annulus saturated with a water based nanofluid is numerically investigated. The mathematical model used is of single-phase and is formulated in dimensionless stream function and temperature taking into account the Darcy-Boussinesq approximation and the nanofluid model proposed by Buongiorno. The transformed dimensionless partial differential equations have been solved using a second-order accurate finite-difference technique. The results indicate that inclusion of nanoparticles into pure water changes the flow structure at low values of the Rayleigh number.",

keywords = "Buongiorno model, Free convection, Horizontal annulus, Nanofluids, Numerical method, Porous medium",

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AU - Sheremet, Mikhail A.

AU - Pop, Ioan

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AB - Natural convection flow in a porous concentric horizontal annulus saturated with a water based nanofluid is numerically investigated. The mathematical model used is of single-phase and is formulated in dimensionless stream function and temperature taking into account the Darcy-Boussinesq approximation and the nanofluid model proposed by Buongiorno. The transformed dimensionless partial differential equations have been solved using a second-order accurate finite-difference technique. The results indicate that inclusion of nanoparticles into pure water changes the flow structure at low values of the Rayleigh number.

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KW - Numerical method

KW - Porous medium

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